Takarau as I know it, means falling leaf and relates to the way these waka sail, they shunt rather than tack.
The relationship with birds has more to do with the development of waka technology and engineering much of it directly from manu.
main hull – imu
end of main hull – kanuka
fitting where mast meets main – red rata
small hull – kauri
deck – Kauri
deck house- kauri, red rata, puriri
mast – puriri
sail- fijian tapa
natural fibre cordage
oiled with bees wax and citrus oil (organoil)